The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 02, 1999
Filed:
Apr. 20, 1998
Applicant:
Inventors:
Curtis G Blount, Wasilla, AK (US);
Bruce E Smith, East Wenatchee, WA (US);
Assignee:
Atlantic Richfield Company, Los Angeles, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
2425972 ; 2421571 ; 166 772 ;
Abstract
A coiled-tubing system having a reel onto which steel tubing is wound in layered coils. A layon roller comprised of a compliant material is maintained in physical contact with the tubing on the reel to prevent premature unwinding of the tubing during operation. The roller is moved towards and away from the tubing to maintain the roller in contact with the tubing as it is payed out and reeled onto the reel. The system includes a level wind mechanism having a means therein for adjusting the tension in the tubing as it passes through the level wind mechanism.